Truchet tiles
In information visualization and graphic design, Truchet tiles are square tiles decorated with patterns that are not rotationally symmetric. When placed within a square tiling of the plane, they can form varied patterns, and the orientation of each tile can be used to visualize information associated with the tile's position within the tiling.[1]
Truchet tiles were first described in a 1704 memoir by Sébastien Truchet entitled "Mémoire sur les combinaisons", and were popularized in 1987 by Cyril Stanley Smith.[1][2]
Variations
Contrasting triangles
The tile originally studied by Truchet is split along the diagonal into two triangles of contrasting colors. The tile has four possible orientations.
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Some examples of surface filling made tiling such a pattern.
With a scheme:
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With random placement:
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Quarter-circles
A second common form of the Truchet tiles, due to Smith (1987), decorates each tile with two quarter-circles connecting the midpoints of adjacent sides. Each such tile has two possible orientations.
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We have such a tiling:
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This type of tile has also been used in abstract strategy games Trax and the Black Path Game, prior to Smith's work.[1]
Diagonal
A labyrinth can be generated by tiles in the form of a white square with a black diagonal. As with the quarter-circle tiles, each such tile has two orientations.[3] Nick Montfort considers the single line of computer code required to generate such patterns - 10 PRINT CHR$(205.5+RND(1)); : GOTO 10
- to be "a concrete poem, a found poem".[3]
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See also
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Wikimedia Commons has media related to Truchet tiles. |
References
- 1 2 3 Browne, Cameron (2008), "Truchet curves and surfaces", Computers & Graphics, 32 (2): 268–281, doi:10.1016/j.cag.2007.10.001.
- ↑ Smith, Cyril Stanley (1987), "The tiling patterns of Sebastian Truchet and the topology of structural hierarchy", Leonardo, 20 (4): 373–385, doi:10.2307/1578535. With a translation of Truchet's text by Pauline Boucher.
- 1 2 Montfort, Nick (2012). 10 PRINT CHR$(205.5+RND(1)); : GOTO 10. MIT Press.
External links
- Truchet in 2D and 3D: http://local.wasp.uwa.edu.au/~pbourke/texture_colour/periodic/
- Javascript animation: http://perso.orange.fr/jean-paul.davalan/divers/truchet/truc.html